Global Patent Index - EP 0415168 A3

EP 0415168 A3 19920902 - INDUSTRIAL EXPERT SYSTEM

Title (en)

INDUSTRIAL EXPERT SYSTEM

Publication

EP 0415168 A3 19920902 (EN)

Application

EP 90115511 A 19900813

Priority

JP 22530189 A 19890831

Abstract (en)

[origin: EP0415168A2] An industrial expert system for use in designing a plant system or devices thereof and in fault detection, comprises a knowledge base (10) including a rules-section (12) for describing deductive inference rules, an expressions-section (13) for describing a calculation formula of equality with either a right side or left side being a simple term having a value and the other side being polynomial including known functions and an attributes-section (11) for declaring nature and value of each of attributes cited in calculation and inference and for declaring parameters for controlling communicaiton between a process of deductive inference and a calculation process according to calculation formula and a deductive inference engine for performing a deductive inference on the basis of the rules, calculation formulae and the attributes stored in the knowledge base. This system uses a simple construction ot efficiently perform detection of fault logic by using specific formula or calculation of parameters representing features of a fault which are to be performed during an inference and which are impossible by conventional inference engine.

IPC 1-7

G06F 9/44; G06F 15/40

IPC 8 full level

G06F 9/44 (2006.01); G06N 5/04 (2006.01)

CPC (source: EP)

G06N 5/04 (2013.01)

Citation (search report)

  • [AP] US 4866634 A 19890912 - REBOH RENE [US], et al
  • [X] IEEE TRANSACTIONS ON MAGNETICS. vol. 24, no. 1, January 1988, NEW YORK US pages 334 - 337; C.M. SALDANHA ET AL.: 'Knowledge-Based Computation of Electromagnetic Device Parameters'
  • [Y] PROCEEDINGS OF 17TH INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC May 1987, BOSTON,USA pages 75 - 81; E.S. SANTOS ET AL.: 'Reasoning with Uncertainty in a Knowledge Based System'
  • PROCEEDINGS 13TH ANNUAL INTERNATIONAL SYMPOSIUM ON COMPUTER ARCHITECTURE June 1986, TOKYO, JAPAN pages 2 - 9; HARUO YOKOTA ET AL.: 'A Model and an Architecture for a Relational Knowledge Base'

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0415168 A2 19910306; EP 0415168 A3 19920902; EP 0415168 B1 19990120; DE 69032903 D1 19990304; DE 69032903 T2 19990902; DE 69033526 D1 20000531; DE 69033526 T2 20000831; EP 0788049 A1 19970806; EP 0788049 B1 20000426; JP 2845508 B2 19990113; JP H0388030 A 19910412

DOCDB simple family (application)

EP 90115511 A 19900813; DE 69032903 T 19900813; DE 69033526 T 19900813; EP 97100868 A 19900813; JP 22530189 A 19890831